{"id":34749,"date":"2019-04-16T06:27:02","date_gmt":"2019-04-16T06:27:02","guid":{"rendered":"\/forum\/forums\/topic\/effective-thermal-conductivity-in-porous-medium\/"},"modified":"2019-04-16T06:27:02","modified_gmt":"2019-04-16T06:27:02","slug":"effective-thermal-conductivity-in-porous-medium","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/effective-thermal-conductivity-in-porous-medium\/","title":{"rendered":"Effective Thermal Conductivity in Porous Medium"},"content":{"rendered":"<p>Hello,<\/p>\n<p><\/p>\n<p>FLUENT uses a default formula, as follows, for calculating the effective thermal conductivity (Keff) of a porous medium, after the user enters the K values for the solid and fluid mediums (Ks and Kf respectively) and the value of porosity (Epsilon):<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/d330a3f2-d127-4d82-87a9-aa22005672d1\/95aa720e-a3b0-4583-ba15-aa310068ac3c_keff-default.jpg?width=690&amp;upscale=false\" alt=\"Default formula used by FLUENT\"><\/p>\n<p><\/p>\n<p>But this is actually the maximum effective thermal conductivity obtainable for the given inputs. The actual Keff must lie below the value obtained from the above formula. This is why I need to customize the formula using the same inputs.&nbsp;<\/p>\n<p><\/p>\n<p>Is there a way to overwrite the default formula?<\/p>\n<p><\/p>\n<p>Can I use a custom field function for this purpose?<\/p>\n<p><\/p>\n<p>Any help would be appreciated.<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>Cheers.<\/p>\n","protected":false},"template":"","class_list":["post-34749","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["6921"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0","0"],"_btv_view_count":["1041"],"_bbp_subscription":["239597"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["34749"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","164015"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["83046"],"_bbp_last_active_id":["83046"],"_bbp_last_active_time":["2019-04-16 10:54:06"]},"test":"punit2019"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/34749","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/34749\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=34749"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}